https://github.com/torvalds/linux
Revision 649e72070cbbb8600eb823833e4748f5a0815116 authored by Wang Yufen on 07 November 2022, 11:04:50 UTC, committed by Steven Rostedt (Google) on 17 November 2022, 01:29:00 UTC
kmemleak reports this issue:
unreferenced object 0xffff888105a18900 (size 128):
comm "test_progs", pid 18933, jiffies 4336275356 (age 22801.766s)
hex dump (first 32 bytes):
25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X.
03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140
[<000000006af00822>] krealloc+0x8d/0xf0
[<00000000c309be6a>] trace_iter_expand_format+0x99/0x150
[<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0
[<0000000065629d9d>] trace_event_printf+0xb6/0xf0
[<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0
[<00000000d22db172>] print_trace_line+0x73c/0x1480
[<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0
[<0000000015b58459>] vfs_read+0x17b/0x7c0
[<000000004aeee8ed>] ksys_read+0xed/0x1c0
[<0000000063d3d898>] do_syscall_64+0x3b/0x90
[<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
iter->fmt alloced in
tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not
freed, to fix, add free in tracing_release_pipe()
Link: https://lkml.kernel.org/r/1667819090-4643-1-git-send-email-wangyufen@huawei.com
Cc: stable@vger.kernel.org
Fixes: efbbdaa22bb7 ("tracing: Show real address for trace event arguments")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
1 parent 31029a8
Tip revision: 649e72070cbbb8600eb823833e4748f5a0815116 authored by Wang Yufen on 07 November 2022, 11:04:50 UTC
tracing: Fix memory leak in tracing_read_pipe()
tracing: Fix memory leak in tracing_read_pipe()
Tip revision: 649e720
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 366 bytes |
| advise.c | -rw-r--r-- | 2.1 KB |
| advise.h | -rw-r--r-- | 316 bytes |
| alloc_cache.h | -rw-r--r-- | 1.1 KB |
| cancel.c | -rw-r--r-- | 7.2 KB |
| cancel.h | -rw-r--r-- | 579 bytes |
| epoll.c | -rw-r--r-- | 1.5 KB |
| epoll.h | -rw-r--r-- | 213 bytes |
| fdinfo.c | -rw-r--r-- | 6.5 KB |
| fdinfo.h | -rw-r--r-- | 100 bytes |
| filetable.c | -rw-r--r-- | 4.4 KB |
| filetable.h | -rw-r--r-- | 2.1 KB |
| fs.c | -rw-r--r-- | 6.6 KB |
| fs.h | -rw-r--r-- | 929 bytes |
| io-wq.c | -rw-r--r-- | 33.4 KB |
| io-wq.h | -rw-r--r-- | 2.0 KB |
| io_uring.c | -rw-r--r-- | 106.1 KB |
| io_uring.h | -rw-r--r-- | 9.8 KB |
| kbuf.c | -rw-r--r-- | 13.2 KB |
| kbuf.h | -rw-r--r-- | 3.6 KB |
| msg_ring.c | -rw-r--r-- | 4.1 KB |
| msg_ring.h | -rw-r--r-- | 178 bytes |
| net.c | -rw-r--r-- | 35.9 KB |
| net.h | -rw-r--r-- | 2.2 KB |
| nop.c | -rw-r--r-- | 498 bytes |
| nop.h | -rw-r--r-- | 168 bytes |
| notif.c | -rw-r--r-- | 1.8 KB |
| notif.h | -rw-r--r-- | 896 bytes |
| opdef.c | -rw-r--r-- | 11.9 KB |
| opdef.h | -rw-r--r-- | 1.3 KB |
| openclose.c | -rw-r--r-- | 6.1 KB |
| openclose.h | -rw-r--r-- | 596 bytes |
| poll.c | -rw-r--r-- | 25.9 KB |
| poll.h | -rw-r--r-- | 1006 bytes |
| refs.h | -rw-r--r-- | 1.2 KB |
| rsrc.c | -rw-r--r-- | 31.4 KB |
| rsrc.h | -rw-r--r-- | 4.5 KB |
| rw.c | -rw-r--r-- | 27.1 KB |
| rw.h | -rw-r--r-- | 705 bytes |
| slist.h | -rw-r--r-- | 3.0 KB |
| splice.c | -rw-r--r-- | 2.9 KB |
| splice.h | -rw-r--r-- | 306 bytes |
| sqpoll.c | -rw-r--r-- | 9.5 KB |
| sqpoll.h | -rw-r--r-- | 753 bytes |
| statx.c | -rw-r--r-- | 1.6 KB |
| statx.h | -rw-r--r-- | 217 bytes |
| sync.c | -rw-r--r-- | 2.7 KB |
| sync.h | -rw-r--r-- | 460 bytes |
| tctx.c | -rw-r--r-- | 7.2 KB |
| tctx.h | -rw-r--r-- | 992 bytes |
| timeout.c | -rw-r--r-- | 16.6 KB |
| timeout.h | -rw-r--r-- | 1.2 KB |
| uring_cmd.c | -rw-r--r-- | 4.0 KB |
| uring_cmd.h | -rw-r--r-- | 494 bytes |
| xattr.c | -rw-r--r-- | 5.5 KB |
| xattr.h | -rw-r--r-- | 654 bytes |
Computing file changes ...
